How to earn more timestamps

[wilkoo]

i bought rur and i want to spend them on vitality hats, but i dont have timestamps lol and they generate kinda slowly or even dissappear, i am sure i had had  12 of them yesterday, spent none and today when i logged i had 9 only.
do they genereate if i am afk in town too or i must be killing mobs / running around ? any way how to earn them faster ? or is there any other item worth buying for rurs for exp ?

[Tommey]

I think they are added 1 per 15-20 min outside peace zone
and yes, you can afk in castle or if you have ch outside peace zone